[EN] METHOD FOR PREPARING SILAHYDROCARBONS<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE SILAHYDROCARBURES
申请人:UNIV DELAWARE
公开号:WO2018064163A1
公开(公告)日:2018-04-05
The present disclosure is directed to a process for preparing silahydrocarbons of formula (I), the process comprising the step of reacting a compound of formula (II), with a compound of formula (III), as well as to silahydrocarbons prepared by such a process, and to compositions and articles of manufacture comprising such silahydrocarbons.
Effects of Alkyl Groups in Electrophilic Additions and Substitutions
作者:HENRY COHN、E. D. HUGHES、M. H. JONES、MARION G. PEELING
DOI:10.1038/169291a0
日期:1952.2
additions and substitutions are accompanied by large increases of reaction-rate3, for example, by a factor of 24.5 for the nitration of toluene as compared with that of benzene. It is a question for discussion whether these strong kinetic effects of alkyl groups are to be credited mainly to hyperconjugation between CH-bonds and the olefinic or aromatic π-system, or to the inductive effect of alkyl groups
<i>Bis</i>-enolates with Extended π-Conjugation Are Powerful Nucleophiles: A Study of Their Alkylation Reactions with Very Hindered C-Electrophiles
作者:Mariña Castroagudín、Rubén Lobato、Lucas Martínez-García、F. Javier Sardina、M. Rita Paleo
DOI:10.1021/acs.joc.9b01961
日期:2019.12.20
Bis-enolates with extended π-conjugation, prepared by alkali metal-mediated reduction of several aromatic and unsaturated diesters, can be efficiently and regioselectively alkylated with very hindered C-electrophiles, such as neopentyl, secondary and tertiary alkyl halides, and tosylates. A one-step synthesis of 4-alkyl phthalates was derived from the reductive alkylation of a phthalate diester with hindered
6H-THIENO[2,3-b]PYRROLE DERIVATIVES AS ANTAGONISTS OF GONADOTROPIN RELEASING HORMONE (GNRH)
申请人:Foote Michael Kevin
公开号:US20080045517A1
公开(公告)日:2008-02-21
The invention relates to a group of novel thieno-pyrrole compounds of Formula (I):
wherein: R
1
, R
2
, R
3
, R
4
and R
5
are as defined in the specification, which are useful as gonadotrophin releasing hormone antagonists. The invention also relates to pharmaceutical formulations of said compounds, methods of treatment using said compounds and to processes for the preparation of said compounds.
The invention is directed to pyridazinone compounds and pharmaceutical compositions containing such compounds that are useful in treating infections by hepatitis C virus.